Use a different 'static' image that supports s390x and ppc

[dprotaso]

Updated image is recommended by Chainguard
Details here: https://www.chainguard.dev/unchained/changes-to-static-git-and-busybox-developer-images-2

ko by default builds for the platforms that the base image supports

Release Note

Support s390x/ppc when building our controllers

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.58%. Comparing base (79dd728) to head (4cb639b).

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #15407      +/-   ##
==========================================
+ Coverage   84.57%   84.58%   +0.01%     
==========================================
  Files         219      219              
  Lines       13587    13587              
==========================================
+ Hits        11491    11493       +2     
+ Misses       1728     1726       -2     
  Partials      368      368              

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[dprotaso]

/cherry-pick release-1.15

[knative-prow-robot]

@dprotaso: once the present PR merges, I will cherry-pick it on top of release-1.15 in a new PR and assign it to you.

In response to this:

/cherry-pick release-1.15

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[ReToCode]

/lgtm
/approve

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dprotaso, ReToCode

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• OWNERS [ReToCode,dprotaso]

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[knative-prow-robot]

@dprotaso: new pull request created: #15409

In response to this:

/cherry-pick release-1.15

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.